Roger Federer says he has no plans to retire anytime soon having enjoyed 2017 more than any other year in his career.
The Swiss silenced all the doubters who said he was too old to add to his haul of Grand Slam titles by capturing this year's Australian Open and Wimbledon men's singles crowns.
It was the first time the 36-year-old had won one of tennis' big four events since 2012 and moved him on to 19 career Grand Slam titles, three clear of Rafael Nadal at the top of the all-time winners' list.
Despite having won every major honour the sport has to offer, Federer has begun his preparations for his 21st season on tour, with the Hopman Cup set to mark his return to competitive action.
The world No.2 is planning to play a limited schedule in order to stay fit for the Grand Slams and is hopeful he can enjoy more success in 2018, despite the returns of Novak Djokovic and Andy Murray from injury.
"It’s been a massive year – perhaps my favourite! If 2018 is half as successful, then I’ll be happy," he told SFR Sport.
"Australian Open, Wimbledon and US Open are cornerstones, everything which lies between we'll take it from there, we'll only step on court if we are 100% fit.
"I currently intend to continue to play for a longer period, hopefully for a few more years. I doubt though, it will be another 10 years."